Researchers at the @uofpenn found a surprising link between serotonin levels, gut health, and long Covid symptoms like brain fog and memory loss, offering a groundbreaking explanation for this frustrating and mysterious condition. 😷 Click the link in our bio for an easy-to-understand explanation of their data, plus a look at what it tells us about a possible cure for long Covid. 🦠 #wuc #kcm #knowitall #katiecouricmedia #longhaulcovid #covid #research #memoryloss #brainfog #health #wellness #study